projective system of topological group 拓扑的射影系

inductive projective system [数] 归纳射影系

projective system matrix 投影体系矩阵

broad screen projective system 大屏幕投影系统

projective coordinate system [数] 射影坐标系

projective coordinates system 射影坐标系

projective optical system 投影光学系统

linear projective coordinates system 直线射影坐标系

homogeneous projective coordinate system 齐次射影坐标系